Not exactly. If epic made a lot of premade geometry, and blocks; then building a level could be just like placing tiles in JCS, but in 3D. Making your own geometry would still be like normal 3D editing though. The 3D equivelent of a custom tileset would be hard to do, though, but still, I'd love if level editing would be as easy as JCS, so people could make all those spiffy custom maps. If it will be as hard to figure out as the Unreal editor, I feel a lot of jazzers who make custom maps now, won't be making them in the next game.